TY - ECHAP
AU - ECMWF
AB - <p>
  Chapter 9 ‘Observation processing'</p>

BT - IFS Documentation CY28R1
C1 - Software development
DA - 2004
DO - 10.21957/iz80xsg8w
LA - eng
M1 - 2
N1 - <p>
  Operational implementation 9 March 2004</p>

N2 - <p>
  Chapter 9 ‘Observation processing'</p>

PB - ECMWF
PY - 2004
T2 - IFS Documentation CY28R1
T3 - IFS Documentation
TI - IFS Documentation CY28R1 - Part II: Data Assimilation - Chapter 9 only
UR - https://www.ecmwf.int/node/9196
ER -